I made an instructable https://www.instructables.com/id/LED-bedside-lamp/ Laser pointers actually use a lot of power , the one I use to play with my cat never lasts more than an hour or two. Check out my ible and if you want one of those bulbs pm me for a link.

That's what I'm talkin bout !!!!! Lots of light , little watts , sorry it took so long , life has been crazy . The ratio to beat is 420 lumins / 5 watts . That's 84 to 1. I know it can be done , and I still have that 100 bucks, my build cost a total of 50 dollars so if you do it for around the same price you will walk away with a really cool light and 50 bucks. I'm going to make an instructable for this as soon as I finish the one for my solar furnace .

I just got the 20 dollar light and O.M.G. it is so bright, totally not a typo, or a misprint. It's not really useful at the moment but as soon as I get a few reflectors on it and a nice shade, I'll be posting lots of pictures and adding an instructable on this topic.

So a 100 watt lightbulb puts out about 1600 lumens, and a 23 watt cfl should put out the same. If you took cgi.ebay.com/5-x-3W-High-Power-White-star-LED-130Lm-3-watt-lamp-5pcs-/320523081829, 3 watts with 120-130 lumens for 1-3$ each, to get the same results you would need 12 leds at 35-36 watts total. The 10 watt led is 700 lumens, and 20 watts is 1500. Price is about a dollar a watt, and you can choose between the warm white and regular white. They even sell bulbs in the 3 watts range pre made.